@Override
public RegionContent getWholeRegion() {
if (model == null || model.getItemCount() < 0) return null;
final LinkedList<String> res = new LinkedList<String>();
final int count = model.getItemCount();
for (int i = 0; i < count; ++i) {
final String line = appearance.getScreenAppearance(model.getItem(i), NONE_APPEARANCE_FLAGS);
res.add(line != null ? line : "");
}
res.add("");
return new RegionContent(res.toArray(new String[res.size()]));
}
@Override
public RegionContent getRegion(int fromX, int fromY, int toX, int toY) {
if (model == null || model.getItemCount() < 0) return null;
if (fromY >= model.getItemCount() || toY > model.getItemCount()) return null;
if (fromY == toY) {
final String line =
appearance.getScreenAppearance(model.getItem(fromY), NONE_APPEARANCE_FLAGS);
if (line == null || line.isEmpty()) return null;
final int fromPos = fromX < line.length() ? fromX : line.length();
final int toPos = toX < line.length() ? toX : line.length();
if (fromPos >= toPos) return null;
return new RegionContent(new String[] {line.substring(fromPos, toPos)});
}
final LinkedList<String> res = new LinkedList<String>();
for (int i = fromY; i < toY; ++i) {
final String line = appearance.getScreenAppearance(model.getItem(i), NONE_APPEARANCE_FLAGS);
res.add(line != null ? line : "");
}
res.add("");
return new RegionContent(res.toArray(new String[res.size()]));
}